Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4990656 | Polyamine substituted dithiocarbamate and process for producing the same | Harold W. Mark | 1991-02-05 |
| 4895993 | Promoters for haloalkene isomerization | H. Wayne Mark, Richard C. Doss | 1990-01-23 |
| 4883585 | Ore flotation and sulfenyl dithiocarbamates as agents for use therein | Rector P. Louthan | 1989-11-28 |
| 4877518 | Ore flotation employing dimercaptothiadiazoles | — | 1989-10-31 |
| 4806234 | Ore flotation | Harold W. Mark | 1989-02-21 |
| 4747940 | Ore flotation and tri-alkali metal-di(carboxyalkyl) dithiocarbamate and triammonium-di(carboxyalkyl) dithiocarbamate flotation agents for use therein | Kenneth B. Kimble, Harold W. Mark | 1988-05-31 |
| 4702821 | Ore flotation and di-alkali metal-di(carboxyalkyl)dithiocarbamate and diammonium-di(carboxyalkyl)dithiocarbamate flotation agents for use therein | Harold W. Mark | 1987-10-27 |
| 4686033 | Trithiocarbonates as flotation reagents | Robert M. Parlman, James B. Kimble | 1987-08-11 |
| 4681675 | Ore flotation | Robert M. Parlman | 1987-07-21 |
| 4663082 | Water-based industrial cleaners | Rex L. Bobsein | 1987-05-05 |
| 4650568 | Trithiocarbonates as depressants in ore flotation | Kenneth B. Kimble, Harold W. Mark | 1987-03-17 |
| 4640789 | Ore flotation and flotation agents for use therein | Rector P. Louthan | 1987-02-03 |
| 4622131 | Ore flotation | H. Wayne Mark | 1986-11-11 |
| 4619760 | Ore flotation agent from 2-mercaptobenzimidazole and flotation processes therewith | Kenneth B. Kimble, Harold W. Mark | 1986-10-28 |
| 4601818 | Ore flotation | Kenneth B. Kimble | 1986-07-22 |
| 4595538 | Tri-alkali metal-di(carboxyalkyl)dithiocarbamate and triammonium-di(carboxyalkyl)dithiocarbamate flotation agents | Kenneth B. Kimble, Harold W. Mark | 1986-06-17 |
| 4584118 | Metal trithiocarbonates as depressants | Robert M. Parlman, Tommy L. Young | 1986-04-22 |
| 4579651 | Flotation reagents | Robert M. Parlman | 1986-04-01 |
| 4561984 | Trithiocarbonate flotation reagents | Robert M. Parlman, James B. Kimble | 1985-12-31 |
| 4561971 | Ore flotation and flotation agents for use therein | Kenneth B. Kimble | 1985-12-31 |
| 4556500 | Flotation reagents | Robert M. Parlman | 1985-12-03 |
| 4554108 | Alkali carboxyalkyl dithiocarbamates and use as ore flotation reagents | Kenneth B. Kimble, Harold W. Mark | 1985-11-19 |
| 4554068 | Ore flotation and flotation agents for use therein | Kenneth B. Kimble, Harold W. Mark | 1985-11-19 |
| 4534857 | Ore flotation with combined collectors | Robert M. Parlman | 1985-08-13 |
| 4533467 | Ore flotation and flotation agents for use therein | Kenneth B. Kimble, Harold W. Mark | 1985-08-06 |